In Lion you can hold down a key to show its variations.
However, when using my custom keyboard layout in
.keylayout format, this functionality is disabled.
I assume Lion’s default keyboard layouts have the special characters that appear when you hold down a certain key hardcoded somewhere, and my old custom keyboard layout (based on the default Snow Leopard-layouts) lacks that data.
My question is: how can these “key variations” be defined in a